Laundry tub mold



y 1935; J. B. RYAN 2,009,415

LAUNDRY TUB MOLD Filed May 5, 1954 5 Sheets-Sheet l 21 W Y x "i July 30,1935. J. B. RYAN LAUNDRY TUB MOLD 3 Sheets-Sheet 2 Filed May 5, 1954 M3@, 1935. J. B. RYAN LAUNDRY TUB MOLD Filed May 5, 1934 3 Sheets-Sheet 34 Qi/S:

Patented July 30, 1935 Joseph B. Ryan, (lhicagm lll iassignor of onehalftoRobert S. Grogam- Chicago,- Ill.

ApplicatiqnMay 5, 1934, satin No. 724,01

5'qlaims. (01. 25- 130) This invention relates to the artof molding applianccs, and has reference more particularly; to molds used in themanufacture] of modern out between its ends, on the line 'I-,-l ofFig.21,

but with the inner mold members left in elei- 5 monolithic laundrytubs.Owing to the shape, of

these tubs, which are usually made: with a downwardly and rearwardlyinclined front wall, it is necessary to build the mold inseparable-parts in order to effect the removal; of the molded structureafter the poured cementitious material has setand hardened, and theseparts have heretofore, so far as I am aware, been fastened together bybolts, the application-and removal of which involves considerable timeand labor.

One object of the present invention has been-to V tub. l-leretoforeconsiderable difficulty has been experienced in providing reliablesupporting means for the wash boardin the mold that ,will

securely hold the board in fixed position during the pouring operationand prevent its accidental displacement which, of course, renders: theproduct imperfect and unsaleable. Another object of the invention hasbeen to provide a simple and. reliable wash board support for the moldthat will securely hold the wash board in Lits'true position during'thepouring and that can be easily re-v moved after thematerial has set.

Other objects andattendant advantagesof the members which determine theform' and size of the internal walls of the washing compartments of thetub.

-Fig. 6 is a view similar tdFig; 5, but showing the separable membersgf-,-the gcomplete mold 'turalfeatures of said members.

spaced apart to more clearly show the struc- Fig. 7 is a verticallongitudinal section, broken vation to show the manner of supporting ametal washboard to be embedded in the 'front wall of thetub, the frontwall. of the left hand mold member being broken away to disclose inpartthe rear wall thereof.- 1

Fig. 8 is a perspective group view, showing the two innermold membersmounted on the base, and the other parts spaced therefrom.

Fig. 9v is an enlarged fragmentary perspective View of: an upper endportion ofthe assembled mold, showing the interfitting relation of amendwall with the rear andfront; walls, 1 1 Fig. 10 is a, detail sectionalviewshowing; an

automatic =lock for thetwo locking; bars" that i hold .the front, rearand end walls of the mold in. assembled'relation; 1

Proceeding now to a detailed description of the mold structureasillustrated in thedrawings, and referring first tothe group view,Fig.. 8, the

.principal concrete-shaping parts consist ,of a

bottom or base member A, a front wall member B, a rear wall-memberv(3;,jdup1icate end wall -members D, and twin inner or compartmentforming members E. The front, rear, and end walls are clamped togetherby. a pair of lockingi bars designated as .a whole by'F, and the base issecured to the front and rear walls bywlocking devices designated as awhole by G. 1 I

The bottom or base member -A,"shown qin isolated detail in Fig.3,comprises a rectangular member of frame ll between the T-.bars l2." As

shown in Figs.3 and 7, the topsof the bars [2, l3

and J4 areslightly-below the top of the main 'frame'llgand'these barsform-a seat for the front and end wallsof the ,two hollow inner moldmembers E. Overlying the rear portion of frame a pair; of bars l5-andzI6,(Figs.,5 and 6) is a longitudinally extending,-plate I1 that gmoldsacountersunk seat in a shelf on the rear top edge ;'of the tub. Thisplate I! ,isformed "1011 its inner- V .edge with alow upstanding flangel8 that forms Figfi5 is averti'cal transyersesection, on the line s -sof Fig. 2.

a' line joint-with the, shortened rear wallwlll of the inner moldmembers E, as clearly shownuin,

of which overlaps the joint and aids in accurate- 1y positioning themold E on the base A. On the upper surface of the plate I! are a pair ofgrids 2| in relief which mold soap dishes or holders 5 in the seat ofthe shelf, and also a pair of pins 22 which mold holes .in the shelf forbolts that fasten a faucet fixture to the shelf. The pins 22 are looselymounted in the plate I! so that, when the mold. is. dismantled aftertheuma-teriall-has set, these pins-remain in the ishelf: aridg may beindividually removed, thereby avoiding chipping at the holes formed bythe pins. 1

The vertical rear wall C, fabricated as shown in Figs. 5, 6 and 8, isformed with adownwar'dly and rearwardly curveddower end portion 23 thatis spaced from the plate !l by an' underly y ing bar 24 and verticaltransverse endplates25, resting on the base frame ll,-these"parts 23;4

and 25 cooperating with the plate l1:to mold the shelf on the upperedgeof the rear wall of the tub. The lnnerif ace -of"- t he 'stripmakes' a joint with the rear vertical edge of the'end w'all D,'-asslwwnat iii-Figs; -5and [9; and theend 5 w'all is locked against outwardmovement 'by 'aln '"angle' bar 2l secured -to the' inner face bf the==-'plates I5 and;-a corresponding angle -bar on the i front wall Blater described.

I'he inclined front wall B ofthemold isfabri I cated*in the -same manneras the rear 'wall- '0; ex

zuresting on' the frame il and h'eld against 'slipby 'cho'cks fl. On the1 inner face of -walll-"'B are platesI"Z9,' -the innenface of eachofwhibh makes v a joint with- 'the front in'elinededge of theend 'wallD, -as shown ae'aqa-m Figs;-5.:and 9,"andsecured to the-inner face o'fthe'plate 'IS is--' an angle bar 3| that cooperates with the angle' bar2T-ln Ioeking -the end wall against 1 outward movement. 'f'he' form andstructure of' theend walls D are clearly shownin Fig-*8, each- Walhbeingstiffened by top and bottom anglesiM-an'd 33 an'd-avertical angle 34 onits outer =side, 'thel bottom hori- :zontal edge ofeach wall D restlr'igon the frame ll asshown in FigSl. I

l'he form and structureof ea'ch of the-inner or =-'compartment=-for-mingmold members -is -=clearly: shownin Figs. 4 =aiid 8 and in the sectionedviews Figs' 5," 6 and'j'l'. Their-lowerfront and end edges: rest on" thetra'me bars l 2--and l3, on #their tops' are lugs 35 for moldin'g theusual drain holes in the bott'om'- walls 'of tlie tub ricompartmexits.

Referring now to the meansforsupportlng a meta'l wa'sh =board lmth'emold, so '-that it 'w'ill be embedded in the-inner isurface of the-in'clined 'frontrwva'll-of .Ithe tub, E36 desi'gnatesthe wash :tboard,fthe'-ribbed surface lot which 1s bordered -by a narrow rectangularmarginal frame 3-7. :Holes :59 (Fig. 8-) are formed through the frontwall member B: and to give greater deptn to the molest; said 'holes areqpreferably' also eittnded through flat-strips 40 @ig. 2 secur'edon theoute'r face of the wall-"'13. "Through the holes are passed pins 4 =theinnen' ends QI sai'd plns engaging the board just inside the corners 1of its :marginal frame '31, and :preferably also be- .tw'eeni'thecorners, ns-shown ln Figffl, 'and this secure1y holdingthe boardag-ainstdisplacement 'fmmdts =pos'ition of rest on -the 'opposed lnc'lined wallof the mold member E, as shown in -F'lg. To lock the plns in place-deafsprings 42 are pivotedon the strips, the free 'ends bf'whieh overlie'theouter ends of 'the pins; The pins are long :enough to project Slightlyabove the strips. 40, as shown -in Fig. 5, so. that, after 'the meceptthat it is fiat throughout-with its lower edge 3 ef the base frame.

Referring now to the means for locking togtlien the separable parts ofthe mold, preliminary td'the pouringoperation, and firstdescribingthe-means' -E by which the front, rear and side Walls aresecurely bonded together, 44 designates each of apair ofclamp bars that,as shown in Fig 'l y extend across the outer sides of the end wallsapproximately mid-height of the latter. 'Ilieiban l4 'is' formed with aninwardly turned ear e'n'd 'portio'n 45= apertured to engage'wi th a pim-4B ori'thefrear sideof therearwall. 47 desigha'tes aI-fkeep'r' mounted'on the verticalangla bar 14} ichc'o'rifi'ries tlie bar44 againstlateral 25 ispiaeement; Ifhe'front'end of :the bar 44 is jflifined 'as ahandle48', and pivoted in a slot in he 's'haiik of th'e handle (Fig. 10)is a latch? di'md with-=-'a "curved serrated inner end 50, adapted tobitinglyengagewith a cam block 5| "30 h'iduh'ted on the outefside of thefront 'Wall memg pz- :1 1 half-"441s "swung downwardly, the seii-ated*edge"-5 of' the latch'49 rides over the -"ouver curved ra'ce I fthe"c'ain 5|,being urged into lockingngageinentwith the latterby'an'under- 35 ..;1ying -sprin'g 52. -When'it'is' desired torelease the'locklrig bar 44, after the -'mold has been fpoured arid its'ciin'te'ntsset, this is easily done by merely pressing down with thethu'mb l'atch49 so as T tO iIe'aSe 't fiOm"bitihgengagement with the"'40 to, ='wnereupon the bar 44'may be raised dledr df 'the keeper' '41,arid then removed from the pm 46. qt is undefs'tood of course, that the'hiil' """iig'aged' by thepin' 46 is sufficiently-larger than 'the' pinto 'per'n'iit this swinging movement 45 tbf the bar V 1 Descrlbf1ignext'thelneans'G for locking the :bottom"rrsme' membe r H to the lowerends of ztl'ie fronVEiid'rear wallsfwhich means are best sl-idwh l'nFIgs.1,"2, 5 "and 6,53 designates eabhlSO of a pair of hooks, each ofwhich is pivoted at 54 'to the lower end of a short link "55 'in' turnpiv'6tedtoa lu'g 56 on the under side of the front member of the'frame'lI. The hook 53 may be readily'sw'ung' upwardly to bring its free endinto engagemenfiwith a block 51 mounted on 'a longitudliial angle' bar58on the lower edge of the front Ihe -free end'bfthe hook '53 is drawninto tight-clampingengagement with the block 51 by. means ofacam-levr=59 'pivoted at fifl'on the hook "60 53 with its upper taperedend-engaged with the horizontal flange of the frame 'l I,-in=a manner-clear1y =shown in Fig. 1. Manifestly, by pressing the depending endof-the cam lever 59 outwardly, I the hook 5 34s drawn downwardlyand thusthe frame member is tightly clampedagainst the lower edges of the wallsof the mold.

"Thesamefme'chanism is employed to lock the fbottom frainge member .I Ito the lowerend of the rearwall 'o'fth'e' mold, and the parts of saidmechanism are thereforeidentified by the same ref--ereiice'characters"employed to designate the parts of the frontmechanism. 7

In disassefnbliiig the'parts of the mold to free the mlded "structure,all that is necessary to" free the base member is to push the dependingends of the cam levers 59 inwardly and then swing the hooks 53 clear ofthe front and rear walls, the hooks then occupying the suspendedpositions partially illustrated in Fig. 6.

It will thus be apparent that the described mold requires no bolts,screws, or like fastening devices in order to assemble its parts, andthis means a very considerable saving of time and labor in preparing themold for the pouring operation. It will also be apparent that thedescribed means for supporting the wash board 36 during the pouringoperation is not only extremely simple, but makes impossible any bodilyor angular move ment of the wash board while the liquid material isbeing poured therearound. The frame 31 of the wash board lies snuglyagainst the sloping wall of the inner mold member'E, and this preventsthe liquid material from flowing into or over the ribbed or corrugatedmetal face of the wash board.

While I have herein shown and described a practical and preferredembodiment of the invention, I do not limit the latter to the specificstructural features set forth, but reserve all such variations,modifications and mechanical equivalents as fall within the spirit andpurview of the claims.

I claim:

1. In a laundry tub mold, removable means for holding a wash board inposition to be embedded in the inner surface of a wall of the tub,comprising a plurality of pins extending through holes in a wall of themold with their inner ends supportingly engaged with the wash board, andmeans for lockingsaid pins in place during the molding operation.

2. In a laundry tub mold, removable means for holding a Wash board inposition to be embedded in the inner surface of a wall of the tub,comprising a plurality of pins extending through holes in a wall of themold with their inner ends supportingly engaged with the wash board, andmeans on said mold wall movable into and out of engagement with theouter ends of said pinsto lock the latter in place during the moldingoperation and permit their subsequent withdrawal.

3. In a laundry tub mold, removable means for holding a wash board inposition to be embedded in the'inner surface of a wall of the tub,compris- 'wall movable onto and oil the outer ends of said pins to lockthe latter in place during the mold-V ing operation and permit theirsubsequent withdrawal. f V

4. In a laundry tub mold having a front wall provided with fixed cams onits end portions, end walls, and a rear wall carrying rearwardly pro:-jecting pins on its end portions, means for holding said walls inassembled position, comprising clamp bars adapted to extend across saidend walls and having laterally extending apertured end portions adaptedto pivot on said pins, handles on and rigid with the forward portions ofsaid clamp bars, and gripping members on said handles adapted to, havebiting engagement with said cams. g

5. In a laundry tub mold having a front wall provided with fixed cams onits end portions, end walls, and a rear wall carrying rearwardlyprojecting pins on its end portions, means for holding said wallsinassembled position, comprising clamp bars adapted to extend across saidend walls and having laterally extending apertured end portions adaptedto pivot on said pins, handles on and rigid with the forward portions ofsaid clamp bars, and latches pivoted on said

